Effect Of Nitrogen Potassium And Zinc On The Yield And Quality Of Wheat Variety Gw 496
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Date
1993
Authors
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Sardarkrushinagar Dantiwada Agricultural University,Sardarkrushinagar
Abstract
A field experiment was conducted on clay loam soil of
the Instructional Farm, Gujarat Agricultural University,
Junagadh during rabi season of the year 1991-92 to study the
effect of nitrogen, potassium and zinc on the yield and quality
of wheat variety GW 496 ( Triticufli aestivuin L. ). Eighteen
treatments comprised of all possible combinations of three
levels of each of nitrogen ( 909 120 and 150 kg/ha ) and zinc
sulphate ( 0, 25 and 50 kg/ha ) and two levels of potassium
( 0 and 60 kg/ha ) were studied in a factorial randomized block
design with four replications.
Crop fertilized with 120 and 150 kg N/ha did not differ
but increased appreciably growth parameters viz., plant height
( at 45 DAS and at harvest ), total tillers/rn row length and
yield components viz., effective tillers/rn row length, length
ii
of spike, number of spikelets/spike, number of grain/spike,
grain weight/spike, test weight and grain and straw yield over
90 kg N/ha. The maximum grain yield of 4452 kg/ha recorded with
150 kg N/ha was followed by 120 kg N/ha ( 4366 kg/ha ).
Application of 150 kg N/ha recorded the maximum net realization
of Rs. 10915/ha, which was closely followed by 120 kg N/ha
( Rs. 10764/ha ). However, the highest net ICBR of 1:4.33 was
recorded with 120 kg N/ha.
Fertilizing the wheat crop at 25 and 50 kg ZnSO4/ha
did not differ materially but increased remarkably growth
parameters viz., plant height ( at 45 DAS and at harvest ) total
tillers/rn row length and yield attributing characters viz.,
effective tillers/rn row length, length of spike, number of
spikelets/spike, number of grain/spike, grain weight/spike,
test weight and grain and straw yield over no zinc application.
These levels also recorded perceptibly higher grain yield of
4388 and 4412 kg/ha, respectively over control. Crop fertilized
with 25 kg ZnSO4/ha recorded the maximum net realization of
Rs. 11303 and net ICBR of 1:3.43.
Application of 60 kg I(20/ha remarkably increased the
growth parameters viz., plant height ( at 45 DAS and at harvest),
total tillers/rn row length and yield components viz., effective
tillers/rn row length, length of spike, spikelets/spike, number
of grain/spike, grain weight/spike, test weight and grain and
iii
straw yield over control. The maximum grain yield of 4412 kg/ha
with net profit of Rs. 11471 and net ICBR of 1:3.56 was
recorded under 60 kg 1C20/ha.
Relative constancy in grain yield with further increase
in nitrogen from 120 to 150 kg/ha and zinc sulphate from 25 to
50 kg/ha showed that crop should not be fertilized with higher
than 120 kg N/ha and 25 kg ZnSO4/ha for achieving the potential
and profitable grain yield. Crop fertilized with 60 kg K20/ha
also would be advantageous for increasing potential grain yield.
Thus, application of 120 kg N, 60 kg 1(20 and 25 kg ZnSO4/ha
emerged out to be the optimum for maximum profitable harvest of
wheat crop on clay loam soils of Junagadh having medium in
nitrogen and low in potassium and zinc content. The maximum net
realization of Rs. 11877/ha was recorded with this combined
application.
The protein content in wheat grains increased with
each successive dose of nitrogen application. The highest
protein per cent of 13.58 and 13.40 were recorded with 150 kg
N/ha and 50 kg ZnSO4/ha, respectively
Description
RESPONSE OF SAFFLOWER TO DIFFERENT DATES OF SOWING AND VARIETIES